| Name | CVE-2021-41159 |
| Description | FreeRDP is a free implementation of the Remote Desktop Protocol (RDP), released under the Apache license. All FreeRDP clients prior to version 2.4.1 using gateway connections (`/gt:rpc`) fail to validate input data. A malicious gateway might allow client memory to be written out of bounds. This issue has been resolved in version 2.4.1. If you are unable to update then use `/gt:http` rather than /gt:rdp connections if possible or use a direct connection without a gateway. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more) |
| NVD severity | medium |
| Debian Bugs | 1001061 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| freerdp (PTS) | stretch | 1.1.0~git20140921.1.440916e+dfsg1-13+deb9u3 | vulnerable |
| stretch (security) | 1.1.0~git20140921.1.440916e+dfsg1-13+deb9u4 | vulnerable | |
| freerdp2 (PTS) | buster | 2.0.0~git20190204.1.2693389a+dfsg1-1+deb10u2 | vulnerable |
| bookworm, sid, bullseye | 2.3.0+dfsg1-2 | vulnerable |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| freerdp | source | (unstable) | (unfixed) | |||
| freerdp2 | source | (unstable) | (unfixed) | 1001061 |
[bullseye] - freerdp2 <no-dsa> (Minor issue)
[buster] - freerdp2 <no-dsa> (Minor issue)
[stretch] - freerdp <no-dsa> (Minor issue)
https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-vh34-m9h7-95xq
https://github.com/FreeRDP/FreeRDP/commit/d39a7ba5c38e3ba3b99b1558dc2ab0970cbfb0c5 (Stable 2.0 backports)
https://github.com/FreeRDP/FreeRDP/commit/f0b44da67c09488178000725ff9f2729ccfdf9fe